Use a scalpel to explore the amazing ways in which a cow s eye works. Name the three layers you sliced through when you cut across the top of the eye. This tough, outer covering of the eyeball has fat and muscle attached to it 2. Fullcolor photographic cow or other mammal eye dissection guide walks you. Mar 07, 20 why cant your body handle a punch to the liver. In your cow s eye, the cornea may be cloudy or blue in color. Sep 25, 2014 ppt to go with an eye dissection practical. If the pdf does not display below, you may also download it here. It contains smooth muscle that changes the shape of the lens so that the eye can focus on objects in the near distance. Cows eye dissection eye diagram cow eyes, human anatomy. Record 3 observations you made when you examined the surface of the eye. Not included, vitreous humor coastline human anatomy bio 220 lab. The cow eye is an excellent specimen to use, because it is very similar to the human eye which makes comparing the structures very relevant.
E duweb labsthis site gives students an opportunity to manipulate laboratory equipment, gather data and process that data. The guide includes stepbystep instructions and labeled diagrams that will lead students through the external anatomy of the eye, followed by dissection of the internal structures. The structures are clear, dissection easy to accomplish and usually kids enjoy the lab. The white part of the eye, the sclera, is a tough, outer covering. Find cow eye dissection lesson plans and teaching resources. Examine the different parts of the eye, such as the cornea at the front of the eye, the iris, the pupil, the sclera, the vitreous humor, the part where the optic nerve connects at the back. Max length was exceeded please fill out all of the mandatory fields one or more of your answers does not meet the required criteria.
The premium pro 50 gb plan gives you the option to download a copy of your binder to your local machine. The cow eye is a fantastic specimen for students of all ages to dissect. Offers profound resources of tutorials and lesson plans for biology and science teachers. Cow eye dissection is popular because of how similar a cows eye is to the human eye. Students dissect a cow eye as part of a unit on anatomy or the senses. Chp 12 cow eye dissection report lab experiment cow eye. B if your budget does not allow for each student to conduct a cows eye dissection, then divide students into groups or conduct the dissection as a demonstration. From there, i direct students to eye dissection page 1 and begin to work through the page with the students. Take your hr comms to the next level with prezi video. On the posterior side of the eye, nestled in the fat and muscle tissue, there is a noticeably round protuberance that feels stiffer than the surrounding tissue.
The cow eye is ideal because its large size makes for easy identification of the eye s components. Science biology digestive system the components and functions of the digestive system. Examining structure and function download pdf use this simple, engaging dissection to teach your students about the eyes structures and their functions. Cows eye dissection by maxine schabel how does the form and function of the cow eye compare to that of a human eye. The cornea, with the anterior chamberand lens, refracts light. Cow eye dissection worksheet cow eyes, dissection, eye. Learn how to dissect a cow s eye in your classroom. Contains detailed instructions, images and an image for labeling the parts of the eye, such as the retina. Cow eye dissection guide by keith metzger teachers pay. Cornea optic nerve vitreous humor retina optic disc blind spot choroid tapetum lucidum sclera aqueous humor suspensory ligaments lens ciliary body pupil iris provided by dissection 101.
I read the steps with the students and we complete the dissection together. Tell three observations you made when you examined the surface of the eye. The black, anterior part of the choroid that looks like the underside of a mushroom is the ciliary body. Cow eye dissection is popular because of how similar a cow s eye is to the human eye. Including dissection activity to retrieve the lens with differentiated worksheets provided for this. The worksheet follows along with this dissection in written form and is followed by lab questions. Colored ring of muscle that changes the size of the pupil. The eye processes the light through photoreceptors located in the eye that send signals to the brain and tells us what we are seeing. Name the three layers you sliced through when you cut across the top of the. The lens is the hard, sphereshaped structure sitting. The kit provides a stepbystep student guide with labeled color images for 1 or 2 students to participate in an introductorylevel dissection activity that includes locating and identifying external and internal features of the eye. Once the students have their aprons and goggles on in the lab, i give each group a cow eye.
Procedure cornea optic nerve fat muscle sclera cornea procedure continued on the next page. Cow eye dissection worksheet cow eyes, dissection, eye anatomy. Draw human eyes eye anatomy find out why the human eye has been called the most complex organ in our body. Name the three layers you sliced through when you cut across the top. Thats the vitreous humor, a mixture of protein and water. Anatomy corner resource site for teachers and students of. In this experiment, students will dissect a cows eye to learn the anatomy of the eye, and compare and contrast a cows eye and a human eye. Cow s eye dissection good virtual dissection with no cost or mess to clean up afterwards. Examining structure and function download pdf use this simple, engaging dissection to teach your students about the eye s structures and their functions. This dissection can be fairly tricky as the parts can be easily mangled or lost. Devoted to the compilation of interactive education sites. I ask the students to look at the back of their eye dissection worksheet while i finish handing out the eyes.
Its a clear lump about the size and shape of a squashed marble. The cornea is the transparent front part of the eye that coversthe iris, pupil, and anterior chamber. Student lab guide for dissecting a cow or a sheep eye. The cow eye is ideal because its large size makes for easy identification of the eyes components.
When you cut the eyeball, a clear watery fluid leaked out. Feb 04, 2016 high ability unit 3 physics aqa eye lesson. My students then reference the video as they are doing the dissection. There are two types of photoreceptors, rods and cones. This cow eye dissection kit gives an inside view of how the eye works.
This step by step tutorial is perfect to show students before they actually dissect. Browse cow eye dissection resources on teachers pay teachers. First of all, when you create your cow eye dissection worksheet, you should make sure that you have all the materials that you need on hand so that you wont have to struggle to get the information you need. The gelatinous fluid inside is the vitreous humor, the lens sits within this liquid. Cow s eye dissection page 5 the back of the eye is. This is the optic nerve, and it sends the images collected in the eye to the brain. You should be able to find the sclera, or the whites of the eye. May 06, 2010 so i was absent on the day they did a cow eye dissection lab, my teacher wants me to do the worksheet associated with it anyway like answer the questions but i dont know what to write.
Cow eye dissection worksheet also frog dissection bailey middle school ppt. Rods are the most sensitive to continue reading eye dissection. Cow eye with answers cow eye dissection can you read this. Virtual cat dissection great photographs to follow the dissection. Email embed facebook twitter classroom upgrade to pro today. Cow eye dissection guide by keith metzger teachers pay teachers. Procedural video showing how to dissect the eye and identify the major structures such as the lens, iris, pupil, vitreous humor, retina and tapetum.
Jan 25, 2010 in this experiment, students will dissect a cows eye to learn the anatomy of the eye, and compare and contrast a cows eye and a human eye. This guide contains step by step instructions on how to cut the eye and identify the major features, such as the cornea, sclera, retina, vitreous humor, lens, and optic nerve. Human eye anatomy parts of the eye explained bluetooth electronics consumer electronics classified cow eye dissection worksheet answers keep in mind, you may only able to delete the worksheet and you arent able to restore it anymore, t. Cow eye dissection video tutorial and lab worksheet by. Puncture the cornea with scissors or a scalpel, aqueous liquid should leak out. Also, it is the attachment point of the muscles that allow the eye to move. Locate the covering over the front of the eye, the cornea. In dissecting the eye, it is important to note the aspect in which the structures are located anterior, posterior, superior, inferior, lateral, medial etc. Choose from 500 different sets of cow eye dissection flashcards on quizlet. The video is only viewable on youtube with the link. Sheeps brain and eyeball dissection report by susie. The white part is the sclera, the outer covering of the eyeball.
Cow eye dissection video tutorial and lab worksheet by warren. Learn cow eye dissection with free interactive flashcards. The cow eye is also large which makes the dissection and identification simple, but very effective. A cow eye dissection lab that i use with my 4th and 5th grade students. Match the following parts of the eye to their function. In your cows eye, the cornea may be cloudy or blue in color. Quizlet flashcards, activities and games help you improve your grades.
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